AX1117

AX1117 1A Low Dropout Linear Regulator  GENERAL DESCRIPTION AX1117 is a low dropout positive adjustable or fixed-mode regulator with minimum of 1A output current capability. The product is specifically designed to provide well-regulated supply for low voltage IC applications such as high-speed bus termination and low current 3.3V logic supply. AX1117 is also well suited for other applications such as VGA cards. AX1117 is guaranteed to have lower than 1.4V dropout at full load current making it ideal to provide well-regulated outputs of 1.25 to 5.0 with 6.4V to 12V input supply.  FEATURES 1.4V maximum dropout at full load current Fast transient response Output current limiting Built-in thermal shutdown Good noise rejection 3-Terminal Adjustable or Fixed 1.5V, 1.8V, 2.5V, 3.3V, 5.0V Packages: SOT223, TO252  BLOCK DIAGRAM VÛmw`RyÑb€ Vin 3 2 Vout w.goftechm + + CURRENT LIMIT 1.25V + 1 + Thermal Shutdown GND (FIXED) - 1 Adj 1/7 Axelite Confidential Materials, do not copy or distribute without written consent. Rev.1.9 Jun.17, 2010 AX1117  PIN ASSIGNMENT The packages of AX1117 are SOT223 and TO252; the pin assignment is given by: SOT223 ( Top View ) 3 2 1 Tab is VOUT TO252 ( Top View ) 3 2 1 Tab is VOUT VIN VOUT Adj (GND) Name VIN VOUT Adj (GND) Description A resistor divider from this pin to the VOUT Adj pin and ground sets the output voltage. (GND) (Ground only for Fixed-Mode) The output of the regulator. A minimum of 10uF capacitor (0.15Ω ≤ ESR ≤ 20Ω) must VO...